Invention Grant
- Patent Title: Textile pressure sensor array and pressure distribution mapping system
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Application No.: US17714168Application Date: 2022-04-06
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Publication No.: US11796401B2Publication Date: 2023-10-24
- Inventor: Yam Chong , Tao Xu , Li Fu , Chenmin Liu
- Applicant: Nano and Advanced Materials Institute Limited
- Applicant Address: HK Hong Kong
- Assignee: Nano and Advanced Materials Institute Limited
- Current Assignee: Nano and Advanced Materials Institute Limited
- Current Assignee Address: HK Hong Kong
- Agency: Idea Intellectual Limited
- Agent Margaret A. Burke; Sam T. Yip
- Main IPC: G01L1/18
- IPC: G01L1/18

Abstract:
A pressure distribution mapping system includes a flexible M×N textile-based pressure sensor array. with first and second electrode textile layers and a piezoresistive fabric layer with a sheet resistance of at least 60 k-ohm/square positioned between the first and second electrode textile layers. Individual pressure sensors are formed by an intersection between a row electrically-conductive path and a column electrically-conductive path along with the portion of the piezoresistive layer positioned at the intersection. A measurement system measures the resistance of each pressure sensor of the pressure sensor array. The measurement system includes a reading module with first op-amps connected to each row and second op-amps connected to each column. Plural switches switch between pressure sensor-enabled and pressure sensor-disabled positions to minimize a bus line crosstalk effect during pressure sensor reading A processor scans each pressure sensor and generates a pressure distribution profile based on a measured resistance of each pressure sensor.
Public/Granted literature
- US20220326099A1 TEXTILE PRESSURE SENSOR ARRAY AND PRESSURE DISTRIBUTION MAPPING SYSTEM Public/Granted day:2022-10-13
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